<!DOCTYPE HTML>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Test</title>
    <script type="text/javascript" src="jquery.min.js"></script>
    <script type="text/javascript" src="index.js"></script>

</head>

<body>
    <div>
        <h4>I am heading</h4>
        <form action="">
            <input type="text" name="1_name" value="1_name">
            <input type="text" name="1_age" value="23">
            <input type="text" name="2_name" value="2_name">
        </form>
    </div>
</body>
</html>